Why: In addition to their plastic and metal casings, electronics contain toxic chemicals that seep into landfills over time. According to the U.S. Environmental Protection Agency, an estimated 30 to 40 million PCs will be ready for "end-of-life management" in each of the next few years. And that doesn't count the other zillion electronic devices in our lives.

Noble encountered the issue firsthand when he had to drive to Detroit to safely dispose of his old computer. Even then, he says you can't be sure that the process is safe and secure. Some recycling companies ship e-waste to developing countries that have fewer and less strict environmental regulation. Noble points out responsibly disposing of e-waste will become particularly important when all TVs move to digital in 2009.

Noble wants to emphasize that when it comes to e-waste, free disposal is not always better. Recycling Jackson, which is now going on year No. 3 of a sustainable e-waste recycling program, is technically free but requests a donation. They suggest $7-$10 for a complete desktop computer setup, and for televisions, $5-$30, depending on size.